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Claude Opus 4.8 (Fast) pricing & benchmarks

Claude Opus 4.8 (Fast) is available from Anthropic at $10.00 per million input tokens and $50.00 per million output tokens ($20.00 blended at 3:1). It accepts up to 1,000,000 tokens of context. Fast-mode variant of [Opus 4.8](/anthropic/claude-opus-4.8) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 4.8. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude…

Pricing

Per million tokens · OpenRouter

Input$10.00

Output$50.00

Blended (3:1)$20.00

Specification

anthropic/claude-opus-4.8-fast

Context window1M

Max output128K

ReleasedMay 2026

LicenceProprietary

Modalitiesin:text, in:image, in:file, out:text

No independently-run benchmark scores are published for Claude Opus 4.8 (Fast) yet. We show nothing rather than reprinting an unverified figure.

Compare Claude Opus 4.8 (Fast)

Claude Opus 4.8 (Fast) vs Qwen3.8 Max Claude Opus 4.8 (Fast) vs DeepSeek V4 Flash 0731 Claude Opus 4.8 (Fast) vs Gemini 3.6 Flash Claude Opus 4.8 (Fast) vs Kimi K3 Claude Opus 4.8 (Fast) vs GPT-5.6 Luna Claude Opus 4.8 (Fast) vs GPT-5.6 Terra Claude Opus 4.8 (Fast) vs GPT-5.6 Sol Claude Opus 4.8 (Fast) vs Grok 4.5

FAQ

How much does Claude Opus 4.8 (Fast) cost?

Claude Opus 4.8 (Fast) costs $10.00 per million input tokens and $50.00 per million output tokens on OpenRouter. At a 3:1 input:output mix that blends to $20.00 per million tokens.

What is Claude Opus 4.8 (Fast)'s context window?

Claude Opus 4.8 (Fast) accepts up to 1,000,000 tokens of context, and can generate up to 128,000 output tokens.